Amid all of io9’s lists looking back at the year’s best books, movies, TV shows, and more, there’s always one melancholy ...

Astronomers probed interstellar comet 3I/ATLAS for alien technosignatures, tracing nine 'mysterious' signals back to human ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Apple TV aired it at 9 pm ET/6 pm PT, and it became the streamer’s most-watched show, surpassing Ted Lasso and Severance. The ...

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

In 1977, astronomers detected a powerful, narrowband radio signal that appeared to come from deep space. It lasted just 72 ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

A legendary signal from deep space, once dismissed by some as statistical noise, has just become even more mysterious.

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.